A region of charged particles in a planet’s upper atmosphere. In Earth’s atmosphere, the ionosphere begins at an altitude of about 25 miles and extends outward about 250.
Namibian terrain captured by Copernicus satellite resembles Martian landscape
Namibian terrain captured by Copernicus satellite resembles Martian landscape by Erica Marchand Paris, France (SPX) May 07, 2024 The Copernicus...